Eyeglass-mounting.



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sTaTns PATE Eql Q PERCIVAL W. JONES, OF LAKEWOOD, RHODE ISLAND, ASSIGNOR TO E. KIRSTEIN SONS l CO., OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

EYEGLASS-MOUNTING.

Speccation of Letters Patent.

Patented Nov. 14, 1916.

Application led J une 14, 1916. Serial No. 103,640.

To all whom it may concern Be it known that I, PnRcIvAL W. JONES, of Lakewood, in the county of Kent and 'State of Rhode Island, have invented cer- My present invention relates to eyeglasses and more particularly to eyeglasses of .the finger-piece type, and it has for its ob]ect to provide a simple, durable and attractive mountingthatrrwill offer certain conveniences in manipulation both during manufacture and when in use.

` The improvements are directed in part toward making `both the. guard lever and the actuating spring therefor easily'detachable. While the guard lever may be removed without rst removing a pivot screw, or other corresponding part, it is nevertheless securely held inplace while in its operative position and can be detached only when rotatedl to another definite position that it cannot occupy while the eyeglasses are clinging to the nose.

To these and other ends the invention resides in certain improvements and combinations of parts all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

In the drawings: Figure 1 is a top plan view much enlarged of one side of any eyeglass mounting constructed in accordance with and illustrating one embodiment of my invention, the guard or nose pad being shown in horizontal section; Fig. 2 is a bottom plan view with the nose pad removed; Fig. 3 is a side elevation taken from the inner or bridgeside of the mechanism, the bridge being shown broken away; Fig. 4 is a bottom plan view showing the lever swung to open position; Fig. 5 isa Vfront elevation ofthe guard lever support with the guard lever and spring removed, and Fig. 6 is a perspective view of the spring.

Similar reference numerals throughout the several gures indicate the same parts.

As the two sides of the mounting are duplicates of each other, only one is shown and the description applicable to vboth will nose under the influence of the lever.

be given in the singular. In this View, 1 indicates the bridge, 2 the lens, 3 and 4 the clips and edge straps constituting the lens attaching portion, and 5 the connecting portion or table, preferably circular, upon which the linger-piece guard lever turns.

'In the present embodiment of the invention,

the front edge of the table 5 is provided with anoverhanging ledge or projection 6 extending from the lens attaching portion .toward the bridge but terminating short of the latter, while rigidly attached to and depending centrally beneath the tablel is a cylindrical tube 7. The center of the table has formed therein a vertically extending bearing opening 8 that extends continuously through the tube 7.

'Ihe guard'lever 1s indicated at 9 and comprises a forwardly'extending operating Aportion or linger-piece -10 and the usual rearwardlyl extending looped adjustable portion 11 upon which is suitably mounted the guard or nose pad 12 that swings toward and from the gripping position against the In the present instance, the pivot for the guard lever is carried thereby and consists of a pin c 13 rigidly connected thereto and adapted to occupy the bearing opening 8 inl the support from which it is removable in an axial direction when the guard is lifted for detachment. l

The spring for actuating the guard lever vand which normally presses the nose'pad 12 inwardly for engagement with the nose, preferably comprises a flat spiral coil 14 composed of a ribbon or strip of flat material that encircles and is supported upon the tube 7 beneath the table or support 5 and to nor mally -prevent its disengagement in a downward axial direction, the lower extremity of the tube 7 'is provided with a laterally outstanding retaining iiange 15 that engagesV the edge of an inner coil. In order to facilitate the application of the vspring to its position on the'tube, the said flange 15 preferably has a volute contour approximating that of the springcoils. `It maybe made necessary to slightly expandthe latter while forcingthem over the end of the tube, but in any event, the tension ultimately placed on the spring causes the coils to `contract closely about the tube and to lock themselves beneath the flange. At its lar er end, the flange terminates in a shoul er Il@ with which interlocks a lateral projection 17 on the inner end .of the spring extending in a direction parallel with its axis, so that such inner end is thus secured to act against the support or stationary part of the mounting. The outer convolution of the spring terminates in a spring arm, the extremity of which engages anc acts upon the rearward loop 11 of the guard lever -that dips down to meet it, as shown in Fig. 8. At the point of engagement, `a recess or saddle 19 is formedl in the edge of the guard arm for the Vreception of the spring arm 18 and the latter is in this way prevented from lateral or vertical movement relatively to the guard and is securely interlocked therewith though readily disengaged therefrom in the horizontal plane of its springmovement.

In order to normally prevent axial movement' of the guard lever 9 and its pivot 13 in the direction in which they are detached from the mounting, l providetwo interlocking devices that act alternately during the turning movement of the guard lever so that when one is` ineffective, the other will be effective. One such device consists of the ledge-6 on the table 5 in conjunction with a finger 19EL on` the for-ward portion of the guard lever that coperates therewith by running against the under surface thereof in all positions of the guard lever except when it is open or holding the nose engaging pad 12 away from the nose, as illustrated in Fig. e. At this point, the finger 19a` has passed beyond the end of the ledge and is in vertical alinementwith an opening 20 (Fig. 1) between it and the bridge, 1. At this point, the interlock described becomes ineffective to prevent axial lmovement of the lever, butin the meantimefthe second interlock becomes effective. This second interlock comprises the lever engaging arm 18 ofthe spring .acting in conjunction with an extension or abutment 21 on the support beneath which the spring arm swings when the finger-piece is in the extreme open position.l as shown inFig, 41. The said abutment engages the spring arm at a point so close to the latters point of engagement with the guard lever that .rigid supportis. given to the spring in holding the lever down and preventing its pivot from Amoving axially.

' Therefore, when it is required to remove the guard lever, the spring arm 18 must first be disengaged and then the levermoved to the extreme open position of Fig. l whereupon it is freeto be raised, the finger 19il thereon passingupward between the end of the ledge 6 and the Abridge 1. l The ready detachability ofthe lspring` 14 after its outer endk is disengaged fromtheguard lever is obvious.

It will be observed that when the guard and its lever are in closed position against the nose, which is also the normal position of the mounting before it is applied to the therefrom` in an axial direction, of an interlocking connection between' the lever and support for preventing such detaching movement, the interlock being effective during` the greater part ofthe travel of the lever during its turning movement and ineffective at a point in its travel, and an actuating spring for the lever. Y

2. ln an eyeglass mounting, the combination with a support, of va linger-piece guard lever pivoted to turn thereon and detachable therefrom in an axial direction when the lever is turned toopen position, and means lpreventing such detachment of the lever while in otherl positions. f

3. In an eyeglass mountingLthe combination with a support'and a finger-piece guard lever mounted to turn thereon, and detachable therefrom in an axial direction, one of said wpartis being provided. with a bearing 'aperture and the other'with a coperating pivot Vmember disengaged from the aperturewhen the lever' detached, of a finger on the lever normallyinterlocking with the support to prevent detaching movement of the lever but movable to an inoperative position permitting such detachment.

4'.' ln an eyeglass mounting, the combination with asupp'ort embodying a table and a finger-piece' guard lever having a pivotal bearing on the tablefrom which it is detachable in an axial direction, of a laterally projecting ledge the table and an interlocking part on the lever normally coperatiiig .with the ledge to prevent detaching movement of the lever but movable with the latter toa position beyond the end of the ledge in which'it permits such detaehment.

e; vIn an eyeglass mounting, the combination with a support and a finger-piece guard lever having a pivotal bearing thereon from which it is detachable in an axial direction, of an interlocking connection between the leverand support for preventing detaching movement of the former throughout part of it'shar of travel and a spring for actuating the lever also actingto interlock it v'with the support during the remainder of its arc of travel;- n L .6; In an eyeglass mounting, the combination with a support and a' finger-ipiece'guard lever having a pivotal bearing thereon from which it is detachable in an axial direction, of two devices for preventing axial movement of the lever arranged to act successively during the pivoting movement of the latter, one of said devices being adapted to be rendered inoperative.

7. In an eyeglass mounting, the combination with a support and a finger-piece guard lever having a pivotal bearing thereon from which it is detachablein an axial direction, of two successively acting interlocking devices between the lever and support, one of which embodies a detachable spring for actuating the lever and is adapted to be rendered inoperative as a locking device.

8. In an eyeglass mounting, the combination with a support provided with an abutment and a finger-piece guard lever having a pivotal bearing thereon from which it is detachable in an axial diection, of a direct an arm detachably engaging the same and adapted, when in engaging position, tocooperate with the abutment on the support and prevent detachment of the llever while the latter is in another position.

9. In an eyeglass mounting, the .combination with a support and a linger-piece guard lever having a pivotal bearing thereon from which it is detachable in an axial direction, of a direct interlocking connection between the lever and support for preventing detaching movement of the former when the guard is closed against the nose and a Spring for actuating the lever andalso acting to lock it against axial movement when the guard is swung to open position.

- PERCIVAL W. JONES.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D C. 

